Price MSBL bent louver security grilles combine strength and safety with reduced see-through and pleasing appearance. The bent louvers are set at a 45 degree deflection and are supported by a 14 gauge interlocking support. A wire mesh is set behind the blade for increased duct security. The fine visual appearance of the MSBL makes it an excellent choice for interview offices, dormitories, locker rooms, and schools.
MSBL Series bent louvre security grilles feature all-welded construction and integral wall sleeves for medium security sidewall applications.
Also suitable for use as a return air inlet.
Wall mounted for supply sir from the rear.
Fixed airflow direction
Non adjustable discharge pattern.
Square face shape
Min 152mm x 152mm, Max 762mm x 762mm.
Louvre face pattern
Steel bent louvre blades at 10mm centres, 45 degree deflection.
All welded steel construction. White powder coat as standard B12, special colours available.
Medium security applications.
16 gauge hot rolled steel with reinforced mitered corners. Optional Thickness: 14 gauge.
14 gauge hot rolled steel bent louvres on 3/8″ (10) centers, 45° deflection (Core C7) with 14 gauge interlocking vertical support mullions on 6″ (152) centers. See for optional Core C8.
10 gauge x 3/8″ (10) clear opening steel wire mesh secured by angles behind core.
14 gauge hot rolled steel, length as required, stitch welded seams. Optional Thickness: 12 gauge. Additional options include continuously welded seams, bent out rear flange (see Option S5).
4-Sided Mounting Frame
1″ x 1″ x 1/8″ (25 x 25 x 3) hot rolled steel angle frame shipped loose for field welding. For optional mounting frames (see options MF1, MF2, MF4).
Minimum: 6″ x 6″ (152 x 152)
Maximum: 30″ x 30″ (762 x 762)